Nagi, with Hayate, Maria, and Sakuya, go to visit the head of the Sanzenin family — Mikado Sanzenin. Hayate runs into him outside, but initially believes him to be a landscaper on Mikado's estate. After Mikado reveals himself, he informs Hayate that his life is infinitely worthless while he is living to merely pay off the debt he owes Nagi. Mikado gives him a special pendant before leaving. Later, Hayate decides that he will protect Nagi from anyone that tries to hurt her, which greatly flusters Nagi.
三千院家の本宅に行くことになったナギとハヤテとマリア。なぜかヘリコプターに乗り込んでいた咲夜と共に本宅に向かった。本宅にいるナギのおじいいさまとは一体どういう人物なのか？ そんなハヤテを不安がらせるような人物像を伝えるナギと咲夜。そして本宅に着いたナギたちは、ものすごいお迎えを受けるだが…。
